230221033021 has 32 divisors (see below), whose sum is σ = 272032992000. Its totient is φ = 194735016000.

The previous prime is 230221033001. The next prime is 230221033033. The reversal of 230221033021 is 120330122032.

It is not a de Polignac number, because 230221033021 - 2⁷ = 230221032893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230221033021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230221033001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9371871 + ... + 9396403.

It is an arithmetic number, because the mean of its divisors is an integer number (8501031000).

Almost surely, 2^230221033021 is an apocalyptic number.

It is an amenable number.

230221033021 is a deficient number, since it is larger than the sum of its proper divisors (41811958979).

230221033021 is a wasteful number, since it uses less digits than its factorization.

230221033021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24914 (or 24900 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 230221033021 its reverse (120330122032), we get a palindrome (350551155053).

The spelling of 230221033021 in words is "two hundred thirty billion, two hundred twenty-one million, thirty-three thousand, twenty-one".